$ git clone -n https://src.fedoraproject.org/rpms/osbuild-composer.git /var/lib/mock/f45-build-21177-580/root/chroot_tmpdir/scmroot/osbuild-composer
Cloning into '/var/lib/mock/f45-build-21177-580/root/chroot_tmpdir/scmroot/osbuild-composer'...
$ git fetch origin 09db02fb06d5f9216077e71b9b75090bb8d64e63:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/osbuild-composer
 * [new ref]         09db02fb06d5f9216077e71b9b75090bb8d64e63 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 09db02f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild